Merry Christmas Guys, There is quite a discussion going on about the oil coolers. There is always more than one way. If it is proof of operations that is needed then I should be able to suggest even another alternate. Williams set up is well proven and engineered. My alternate pre-dates Williams manufactured systems (2001). I did not know if it would prove to operate correctly when I built it. At 975 hours I think that I can safely say that mine does. I have the stock folded fin oil cooler mounted in a somewhat skewed position in front of the right (passenger side) cylinder. This is directly in the airflow that comes in the right front of the cowl. It is plumbed with all aircraft fittings and hose. It also has a tee in the line that feeds directly to the 5th bearing from the oil cooler (which has been good for well over 700 hours). The only issues I have had with the oil cooler are these: At about 35 hours during the testing phase the first stock oil cooler developed a leak and failed. I cleaned another one up and re installed which has been in place for over 950 hrs. The other is operational that it is too cold. During the winter I have to cover over half of the oil cooler front area to keep get the temperature up into the 180's. In the summer in anything but the highest climb and ambient heat the temps are always under 205. IT does take a bit of cylinder head temperature management. It does block some of the cooling air that would go to the right cylinder bank. Winter has no issue but on long climbs the right bank needs some more air in the summer. All I have to do is lower the nose for a minute,I can still be climbing just not at 1000/min. William has encouraged me to change it out a number of times, but I have wanted to test it as long as I can. Had the sandwich been available likely would have used it. I am in no way telling anyone to copy mine. There are other ways that safety is not compromised. Have a great holiday, Joe Horton, N357CJ-flying Dr. Dean's KR2S-- 40%
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